No, two eggs and one sperm cannot make a baby. In order for a baby to be conceived, two haploid gametes, or sex cells, must fuse together – an egg from the mother and a sperm from the father. During conception, the egg contains 23 chromosomes from the mother, and the sperm contains 23 chromosomes from the father.
When these two cells meet and fuse, they form a single cell with 46 chromosomes. The combination of these chromosomes determines the baby’s gender, physical and personality attributes. Therefore, in order for a baby to be conceived, two haploid gametes must fuse together – one egg from the mother and one sperm from the father.
Can 2 eggs be fertilized by 1 sperm?
No, two eggs cannot be fertilized by one sperm. For fertilization to occur, an individual sperm must enter the oocyte (egg) and deliver its genetic material, thereby creating 1 celled embryo. As one sperm is only able to fertilize one oocyte, it is not possible for two eggs to be fertilized by 1 sperm.
However, a single sperm can fertilize two eggs simultaneously in a process known as “twinning”. This can occur if two unfertilized eggs are simultaneously exposed to the same sperm. On rare occasions, one sperm may enter two separate eggs, fertilizing both and resulting in identical twins.
What can happen if 2 eggs are fertilized?
If two eggs are fertilized, a non-viable pregnancy can occur. This is known as ‘superfetation’, and is when two eggs from separate menstrual cycles are fertilized by two different sperm cells. This can lead to a form of ‘twins’, with one being older than the other.
It can also cause a reduction in the health of the pregnancy, resulting in an increased risk of miscarriage or birth defects. Superfetation is very rare and difficult to detect, as the two eggs can implant within days or weeks of each other, resulting in a slightly delayed pregnancy.
In some instances, the fetuses can share a placenta, and lead to one being larger than the other. In such cases, it is important to monitor the babies during the pregnancy and birth, as complications may arise.
It is also important to seek prompt medical help if you suspect that you are carrying more than one fetus.
Can you make a baby from 2 eggs?
No, you cannot make a baby from two eggs. For a baby to be born, an egg from a female must be fertilized with sperm from a male. Though eggs from both male and female contain genetic information, only the female egg is capable of producing an embryo.
Furthermore, the egg and sperm must meet inside the female’s body. The egg and sperm are combined outside the body in a laboratory in a process called in vitro fertilization, but this is not the same as making a baby from two eggs.
In vitro fertilization can create a baby if the egg is fertilized with sperm, but it still cannot be created from two eggs.
Can twins be conceived a week apart?
No, twins are not able to be conceived a week apart. Twins are generally the result of a single fertilized egg splitting into two, which can only occur during the first few days of embryo development.
Because of this, twins must be conceived within a few days of each other. It is not possible for twins to be conceived a week or more apart.
It is also important to note that fraternal or “dizygotic” twins, which are created when two separately fertilized eggs are implanted in the uterus, can occur a few days apart. However, this is not the same as being conceived a week apart, as the fertilization must have already occurred.
In conclusion, it is not possible for twins to be conceived more than a few days apart, no matter what type of twins they are.
Can you tell if you’re pregnant with twins?
In most cases, you can tell if you are pregnant with twins during your first ultrasound, which usually takes place between weeks 8 and 12 of your pregnancy. This ultrasound test can detect how many fetuses you’re carrying.
That said, there may be instances where you won’t be able to know for certain if you’re carrying twins until a few weeks later when the gestational sacs are developed enough to be seen on the ultrasound.
In the meantime, some symptoms that may mean you’re pregnant with twins include: morning sickness that’s more severe than usual, elevated pregnancy hormones, or sudden weight gain. If you’re concerned, speak with your healthcare provider who can provide more information and a professional diagnosis.
What happens if more than one egg is fertilized during IVF?
If more than one egg is fertilized during IVF, the physician may recommend transferring only a single embryo to reduce the risk of a multiple pregnancy. Transferring multiple embryos at the same time increases the chances of having twins or even triplets.
However, if the physician and patient decide to transfer multiple embryos, the doctor will monitor their development in order to better manage their progress. The physician will also recommend a follow-up visit to check for multiple pregnancies, and advise the patient on the risks and benefits of a multiple pregnancy.
It is also possible for additional embryos to be frozen for later transfer, depending on the wishes of the patient and doctor.
How many fertilized eggs is a good number?
The exact number of fertilized eggs that is considered ‘good’ will depend on the particular circumstances. Generally speaking, it’s best to have over two dozen fertilized eggs, to ensure the highest chance of success with in vitro fertilization (IVF).
However, a couple may be able to conceive with fewer eggs, especially if they’re younger. Additionally, having more eggs increases the odds of a successful pregnancy as there are more embryos to choose from.
The IVF clinic may also recommend more eggs if the couple are older, as fertility potential decreases with age. Factors such as the age of the mother and quality of the eggs can all have an effect on the number of eggs that may be recommended.
It’s important to speak with experienced medical professionals who can advise a couple based on their particular needs.
What happens if 2 sperm enter 1 egg?
If 2 sperm enter 1 egg, then the egg will typically be unable to develop normally because it is missing the paired set of genetic instructions that are normally present in a normal egg. This condition is called “polyspermy,” which occurs when more than one sperm penetrates the egg at the same time.
Even if the egg is fertilized, it will be unable to develop further and implant. The abnormal number of chromosomes that result from 2 sperm entering 1 egg can cause severe health and developmental problems to the resulting embryo.
Can a baby have DNA from two fathers?
Yes, a baby can have DNA from two fathers in certain circumstances. This phenomenon is called “double paternity” and is believed to occur when a woman has intercourse with two different men close together and the sperm of both men fertilize the same egg.
This type of double paternity has been identified in 2-4% of non-identical twins. Double paternity can also happen when two eggs are both fertilized, resulting in a set of semi-identical twins. This occurs when a single sperm from the same father fertilizes two mother’s eggs or when two sperm from the same father fertilize two eggs from the same mother.
The likelihood of double paternity increases with the use of fertility treatments like IVF, where sperm and eggs are combined in a lab. In this case, the clinic can mistakenly load two sperm into the same egg.
Which parent decides twins?
The process of determining the biological parent of twins is a complicated one, as it involves many different factors and is ultimately decided on a case-by-case basis. In general, though, it is the mother who is the legal parent of twins.
She has the exclusive right to decide on the identity and upbringing of the children. Generally, the mother’s name will be listed on the birth certificate as the mother of both twins.
In some cases, the biological father of the twins may be involved, though this is dependent on the legal and biological evidence of paternity, as well as voluntary acknowledgement of paternity by the father.
Further, other parties, such as the father’s family, may be involved in making decisions regarding the twins.
Where the father’s identity and paternity are not known, the courts will determine the right of the father and his family to be involved in decisions concerning the twins. Ultimately, any arrangements for the care of the twins will be determined on a case-by-case basis.
How many eggs can one sperm fertilize?
It is estimated that a single sperm can potentially fertilize up to 300,000 eggs. When sperm is released into the female reproductive tract, it has to make its way through the female reproductive organs like the cervix, fallopian tubes, and uterus.
In the fallopian tubes, millions of sperm cells are released and they travel along the mucus present in the fallopian tube. It is here that the sperm cells release chemicals which help the sperm travel faster while they search for the egg.
As they traverse, some sperm are lost and some make it to the egg. Through a process called ‘fusion’, a sperm binds itself to the egg, and the egg is then fertilized. It is estimated that a single sperm can potentially fertilize up to 300,000 eggs, but only one egg is fertilized in each cycle.
How many sperm does it take to fertilize one egg?
The exact amount of sperm it takes to fertilize an egg can vary depending on the individual and availability of healthy sperm. Typically, it takes only one sperm to fertilize an egg, however, it is estimated that between 200 and 300 sperm must come in contact with the egg in order for one sperm to successfully fertilize the egg.
This is due to sperm not being able to make its way through the tough outer layer of the egg. Once contact is made with the egg, enzymes are released that enable the single sperm to penetrate the egg and fertilize it.
What is a 3 parent baby?
A 3 parent baby is a form of assisted reproductive procedure that enables parents who are susceptible to passing genetic disorders to have a healthy child. The process involves DNA from three individuals, hence the term 3-parent babies.
The procedure is known as mitochondrial replacement therapy (MRT) and is used when parents have mutations in the DNA in their mitochondria, which are the cell’s power supply. Mitochondrial DNA is passed from mother to child, so the first step of the 3-parent procedure involves removing the nucleus from the mother’s egg and inserting it into the egg of a donor woman whose mitochondria are healthy.
Then the egg is fertilized with sperm from the intended father.
The result is an embryo that has genetic material from three different people — two biological parents for the majority of the DNA and a mitochondrial donor to provide mitochondrial DNA. This type of genetic engineering has been around since the 1990s, but the technique behind 3-parent baby was developed in the 2000s.
The 3-parent baby procedure has sparked a debate due to the ethical and religious implications. Critics worry that the approach opens the door to designer babies and other forms of unethical experimentation.
Despite these concerns, the procedure has been approved in a handful of countries, including the UK and the US, and has allowed couples with perilous genetic mutations to become parents.
How to make a baby with two females?
Making a baby with two females is possible through a process known as reciprocal in vitro fertilization (IVF). This IVF process involves one female donating her eggs to the other female for fertilization.
The donor female’s eggs are combined with the other female’s partner’s sperm in a laboratory, and the resulting embryos (usually 3-5) are transferred to the surrogate female. The surrogate then carries the pregnancy and delivers the baby.
The two females can also opt for donor sperm if they do not have a male partner. In this case, donor sperm is combined with the donor female’s eggs in vitro and the resulting embryos are transferred to the surrogate.
Another option is to use an egg donor, who donates her eggs to a recipient couple or individual. Again, the donated eggs are fertilized in vitro with a donor male’s sperm and the resulting embryos are transferred to the surrogate.
These eggs can come from an anonymous donor or a friend or family member of the two females.
Overall, making a baby with two females is possible with the help of reproductive technologies such as IVF and donor sperm or eggs. It is essential to seek advice from fertility specialists who can provide you with the most suitable fertility solutions and guide you through the process.